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It can effectively prevent cracking,by analyzing the chemical and mechanical pefformanee of this clad plate,carrying on the non-standard highest hardness test,metallographic analysis and simulation welding test,and using 890 ℃×4 h preweht air-cool heat treatment,postweld 250 ℃×2 h hydrogen removal heat treatment and final 620

通过分析该复合管板的化学成分和机械性能，并进行了非标准的最高硬度试验、金相分析和模拟试焊，采用890℃×4h焊前空冷热处理、焊后250℃×2h消氧热处理以及最终620℃×4h退火热处理措施，可有效防止裂纹产生。

He was a design engineer for shell and tube heat exchangers and air-cooled heat exchangers for 23 years.

他是一个23年的设计工程师管壳式换热冷却热交换器的换热和空气。

Also on the south surface water source heat pump systems and air-cooled heat pump performance of the comparison test.

还对南方地区地表水源热泵系统与风冷热泵的性能进行了对比测试。

Ground-source heat pump systems can save 40%—50% of energy than air-cooled heat pump system.

地源热泵系统比风冷热泵系统节能40%—50%。

In the end author points out that air-to-water heat pump is worthy of being recommended in Taiyuan market. central air conditioning,air conditioning of variable refrigerant volume,air-line system,air-to-water heat pump

它具有普通分体空调和中央空调的双重优势，在价位的取向上主要是针对较高收入的工薪阶层、私营企业主、高级白领以及其他高收入人群，虽然目前价位相对普通空调要高，但随着我国市场经济的高速发展、人民生活水平的

This article proposes experimental studies on the sublimation behavior of dry ice in a airtight columniform container of Ф 159×840mm. Four typical processes are analyzed under the conditions of heat-preservation, heat transferring, air and airlessness respectively.

对干冰在尺寸为Ф159mm×840mm的圆柱体密闭容器中进行了绝热条件与有热交换、有空气与排出空气这4种过程的升华实验，获得了干冰升华过程的温度—压力曲线。

Results: In AIRT,when the fur was thin,the patient's major syndromes were invasion of the lung by wind-heat and wind-heat exterior syndromes which belong to exterior syndromes.

结果表明：在急性呼吸系感染疾病中，薄苔以表证为主要证候，多见风热表证、风热犯肺证候；厚苔以里证为主要证候，多见痰热阻肺、邪热壅肺证候。

It's mainly taken the special local product called "hongguniang" as raw material to produce green ecology health production food.《Chinese Herbal Material Medica》recorded: alkekengi can clearing away the heat-evil and expelling superficial evils, eliminate damp and detumescence, diuresis as well as cure angina, cure pulmonary heat, cure cough etc.

主要以当地特产红菇娘为原料生产的绿色生态保健食品，《本草纲目》中记载：酸浆清热解毒，祛湿消肿，利尿，咽痛喑哑，肺热咳嗽等症。

We had found that heat absorbents can be used as effective flame retarding additives to those explosives whose heat decomposition mechanisms are mainly decided on temperature, such as AMATOL, while char forming promotors to those explosives in which molecules exsist char forming group, such as TNT, RDX, HMX, etc.

文中推导出的点燃公式和实际情况基本相符，本文还用负催化原理，热点燃的稳态理论以及链反应原理解释了出现自熄的原因并导出了出现自熄的判据。

We utilise the date being gained from 5# BF of JinXi Iron and Steel Co.to train the network、to simulate forecasting and control.We also analysed predicting results and analysed the qualititive and quantitative relationship between controlling parameter or medium parameter and silicon content of heat metal.On base of these,we form some control rules and set up a whole silicon content of heat metal prediction and control NN model. The model use fixed method and amendable method to simulate prediction.

利用津西钢铁集团公司5#高炉的实际生产数据对网络进行系统学习、模拟预测和控制，进一步分析预测结果，分析可控参数及中间参数与铁水硅含量的定性及定量关系、制定控制规则，从而构建出完整的铁水硅含量预测与控制的神经网络模型。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。